Connected: An Internet Encyclopedia
RFC 1700 - telnet-options

Top: Connected: An Internet Encyclopedia
Up: Requests For Comments
Up: RFC 1700

Search: |  | Search Depth: |
Search Type: | String RegEx | Search Options: | NoCase WholeWord

    TELNET OPTIONS

    The Telnet Protocol has a number of options that may be negotiated.
    These options are listed here.  "Internet Official Protocol Standards"
    (STD 1) provides more detailed information.

    Options  Name                                              References
    -------  -----------------------                           ----------
       0     Binary Transmission                                 [RFC856]
       1     Echo                                                [RFC857]
       2     Reconnection                                      [NIC50005]
       3     Suppress Go Ahead                                   [RFC858]
       4     Approx Message Size Negotiation                   [ETHERNET]
       5     Status                                              [RFC859]
       6     Timing Mark                                         [RFC860]
       7     Remote Controlled Trans and Echo                    [RFC726]
       8     Output Line Width                                 [NIC50005]
       9     Output Page Size                                  [NIC50005]
      10     Output Carriage-Return Disposition                  [RFC652]
      11     Output Horizontal Tab Stops                         [RFC653]
      12     Output Horizontal Tab Disposition                   [RFC654]
      13     Output Formfeed Disposition                         [RFC655]
      14     Output Vertical Tabstops                            [RFC656]
      15     Output Vertical Tab Disposition                     [RFC657]
      16     Output Linefeed Disposition                         [RFC657]
      17     Extended ASCII                                      [RFC698]
      18     Logout                                              [RFC727]
      19     Byte Macro                                          [RFC735]
      20     Data Entry Terminal                         [RFC1043,RFC732]
      21     SUPDUP                                       [RFC736,RFC734]
      22     SUPDUP Output                                       [RFC749]
      23     Send Location                                       [RFC779]
      24     Terminal Type                                      [RFC1091]
      25     End of Record                                       [RFC885]
      26     TACACS User Identification                          [RFC927]
      27     Output Marking                                      [RFC933]
      28     Terminal Location Number                            [RFC946]
      29     Telnet 3270 Regime                                 [RFC1041]
      30     X.3 PAD                                            [RFC1053]
      31     Negotiate About Window Size                  [RFC1073,DW183]
      32     Terminal Speed                                     [RFC1079]
      33     Remote Flow Control                                [RFC1372]
      34     Linemode                                           [RFC1184]
      35     X Display Location                                 [RFC1096]
      36     Environment Option                                 [RFC1408]
      37     Authentication Option                              [RFC1416]
      38     Encryption Option                                   [Borman]
      39     New Environment Option                             [RFC1572]
      40     TN3270E                                            [RFC1647]
      41     XAUTH                                              [Earhart]
     255     Extended-Options-List                               [RFC861]

    Telnet Authentication Types

    In [RFC1416], a list of authentication types is introduced.  Additions
    to the list are registerd by the IANA and documented here.

    Type       Description                  Reference
      0        NULL                         [RFC1416]
      1        KERBEROS_V4                  [RFC1416]
      2        KERBEROS_V5                  [RFC1416]
      3        SPX                          [RFC1416]
      4-5      Unassigned                      [IANA]
      6        RSA                          [RFC1416]
      7-9      Unassigned                      [IANA]
     10        LOKI                         [RFC1416]
     11        SSA                           [Schoch]

    In [RFC 1411], on the KERBEROS_V4 Telnet Authentication type there are
    a set of Suboption Commands.  Additions to the list are registerd by
    the IANA and documented here.

    Suboption	Command                  Reference
       0            AUTH                     [RFC1411]
       1            REJECT                   [RFC1411]
       2            ACCEPT                   [RFC1411]
       3            CHALLENGE                [RFC1411]
       4            RESPONSE                 [RFC1411]
       5            FORWARD                 [Brashear]
       6            FORWARD-ACCEPT          [Brashear]
       7            FORWARD-REJECT          [Brashear]

    REFERENCES

    [ETHERNET] "The Ethernet, A Local Area Network: Data Link Layer and
               Physical Layer Specification", AA-K759B-TK, Digital
               Equipment Corporation, Maynard, MA.  Also as: "The
               Ethernet - A Local Area Network", Version 1.0, Digital
               Equipment Corporation, Intel Corporation, Xerox
               Corporation, September 1980.  And: "The Ethernet, A Local
               Area Network: Data Link Layer and Physical Layer
               Specifications", Digital, Intel and Xerox, November 1982.
               And: XEROX, "The Ethernet, A Local Area Network: Data Link
               Layer and Physical Layer Specification", X3T51/80-50, Xerox
               Corporation, Stamford, CT., October 1980.

    [NIC50005] DDN Protocol Handbook, "Telnet Reconnection Option",
               "Telnet Output Line Width Option", "Telnet Output Page Size
               Option", NIC 50005, December 1985.

    [RFC652] Crocker, D., "Telnet Output Carriage-Return Disposition
             Option", RFC 652, UCLA-NMC, October 1974.

    [RFC653] Crocker, D., "Telnet Output Horizontal Tabstops Option",
             RFC 653, UCLA-NMC, October 1974.

    [RFC654] Crocker, D., "Telnet Output Horizontal Tab Disposition
             Option", RFC 654, UCLA-NMC, October 1974.

    [RFC655] Crocker, D., "Telnet Output Formfeed Disposition Option",
             RFC 655, UCLA-NMC, October 1974.

    [RFC656] Crocker, D., "Telnet Output Vertical Tabstops Option",
             RFC 656, UCLA-NMC, October 1974.

    [RFC657] Crocker, D., "Telnet Output Vertical Tab Disposition Option",
             RFC 657, UCLA-NMC, October 1974.

    [RFC658] Crocker, D., "Telnet Output Linefeed Disposition", RFC 658,
             UCLA-NMC, October 1974.

    [RFC698] Tovar, "Telnet Extended ASCII Option", RFC 698, Stanford
             University-AI, July 1975.

    [RFC726] Postel, J. and D. Crocker, "Remote Controlled Transmission
             and Echoing Telnet Option", RFC 726, SRI-ARC, UC Irvine,
             March 1977.

    [RFC727] Crispin, M., "Telnet Logout Option", RFC 727, Stanford
             University-AI, April 1977.

    [RFC734] Crispin, M., "SUPDUP Protocol", RFC 734, Stanford,
             October 1977.

    [RFC735] Crocker, D. and R. Gumpertz, "Revised Telnet Byte Marco
             Option", RFC 735, Rand, CMU, November 1977.

    [RFC736] Crispin, M., "Telnet SUPDUP Option", Stanford University-AI,
             RFC 736, Stanford, October 1977.

    [RFC749] Greenberg, B., "Telnet SUPDUP-OUTPUT Option", RFC 749,
             MIT-Multics, September 1978.

    [RFC779] Killian, E., "Telnet Send-Location Option", RFC 779,
             LLL, April 1981.

    [RFC856] Postel, J. and J. Reynolds, "Telnet Binary Transmission",
             STD 27, RFC 856, USC/Information Sciences Institute, May
             1983.

    [RFC857] Postel, J. and J. Reynolds, "Telnet Echo Option", STD 28, RFC
             857, USC/Information Sciences Institute, May 1983.

    [RFC858] Postel, J. and J. Reynolds, "Telnet Suppress Go Ahead
             Option", STD 29, RFC 858, USC/Information Sciences Institute,
             May 1983.

    [RFC859] Postel, J. and J. Reynolds, "Telnet Status Option", STD 30,
             RFC 859, USC/Information Sciences Institute, May 1983.

    [RFC860] Postel, J. and J. Reynolds, "Telnet Timing Mark Option",
             STD 31, RFC 860, USC/Information Sciences Institute, May
             1983.

    [RFC861] Postel, J. and J. Reynolds, "Telnet Extended Options - List
             Option", STD 32, RFC 861, USC/Information Sciences Institute,
             May 1983.

    [RFC885] Postel, J., "Telnet End of Record Option", RFC 885,
             USC/Information Sciences Institute, December 1983.

    [RFC927] Anderson, B., "TACACS User Identification Telnet Option",
             RFC 927, BBN, December 1984.

    [RFC933] Silverman, S., "Output Marking Telnet Option", RFC 933,
             MITRE, January 1985.

    [RFC946] Nedved, R., "Telnet Terminal Location Number Option",
             RFC 946, Carnegie-Mellon University, May 1985.

    [RDC1041] Rekhter, J., "Telnet 3270 Regime Option", RFC 1041,
              IBM, January 1988.

    [RFC1043] Yasuda, A., and T. Thompson, "TELNET Data Entry Terminal
              Option DODIIS Implementation", RFC 1043, DIA, February 1988.

    [RFC1053] Levy, S., and T. Jacobson, "Telnet X.3 PAD Option",
              RFC 1053, Minnesota Supercomputer Center, April 1988.

    [RFC1073] Waitzman, D., "Telnet Window Size Option", RFC 1073,
              BBN STC, October, 1988.

    [RFC1079] Hedrick, C., "Telnet Terminal Speed Option", RFC 1079,
              Rutgers University, December 1988.

    [RFC1091] VanBokkelen, J., "Telnet Terminal Type Option",
              RFC 1091, FTP Software, Inc., February 1989.

    [RFC1096] Marcy, G., "Telnet X Display Location Option", RFC 1096,
              Carnegie Mellon University, March 1989.

    [RFC1184] Borman, D., Editor, "Telnet Linemode Option",
              RFC 1184, Cray Research, Inc., October 1990.

    [RFC1372] Hedrick, C., and D. Borman, "Telnet Remote Flow Control
             Option", RFC 1372, Rutgers University, Cray Research, Inc.,
             October 1992.

    [RFC1408] Borman, D., Editor, "Telnet Environment Option", RFC 1408,
              Cray Research, Inc., January 1993.

    [RFC1411] Borman, D., Editor, "Telnet Authentication: Kerberos
              Version 4", RFC 1411, Cray Research, Inc., January 1993.

    [RFC1416] Borman, D., Editor, "Telnet Authentication Option", RFC
              1416, Cray Research, Inc., February 1993.

    [RFC1572] Alexander, S., Editor, "Telnet Environment Option", RFC1572,
              Lachman Technology, Inc., January 1994.

    [RFC1647] Kelly, B., "TN3270 Enhancements", RFC1647, Auburn
              University, July 1994.

    PEOPLE

    [Brashear] Derrick Brashear, , January 1995.

    [Borman] Dave Borman, , January 1995.

    [Earhart] Rob Earhart, , April 1995.

    [IANA] Internet Assigned Numbers Authority, , January
    1995.

    [Schoch]  Steven Schoch, , January 1995.

    []

Connected: An Internet Encyclopedia
RFC 1700 - telnet-options